Hot water heater



April 3, 1934. R. M. FORSTER HOT WATER HEATER Filed Nov. 1, 1932 B P7. porsier Patented Apr. 3, 1934 UNITED STATES PATENT OFFICE HOT WATER HEATER Roy M. Forster, Port Arthur, Tex.

Application November 1, 1932, Serial No. 640,697

2 Claims. (01. 122-19) This invention relates to boilers and more particularly to a combination heater and boiler for use in storing of hot water or the like.

An object of this invention is to provide an i I insulated boiler construction in combination with a heating means and a thermal unit carried by the heating means and extending into the boiler so that the Water in the boiler can be heated to the desired degree.

Another object of this invention is to provide in a boiler construction of this kind a novel heating means whereby the coils can be readily removed for repairs or cleaning.

A further object of this invention is to provide a heating element and a burner chamber together with an insulated jacket which can be mounted on a boiler of standard dimensions.

The above and various other objects and advantages of this invention will in part be described and in part be understood from the following detailed description of the present preferred embodiment, the same being illustrated in the accompanying drawing wherein:-

Figure 1 is a vertical section partly broken away and partly in elevation of a device constructed according to the preferred embodiment of this invention.

Figure 2 is a horizontal section taken substantially on the line 2-2 of Figure 1.

Figure 3 is a fragmentary sectional view partly in elevation taken on the line 3-3 of Figure 1,

and showing the coil separate from the heating chamber and water reservoir.

Referring to the drawing wherein like characters of reference designate corresponding parts throughout the several views, the letter T designates generally a water tank or reservoir provided with an inlet pipe 10 and an outlet pipe 11.

This inlet pipe 10 extends downwardly, as at 13,

1 into the interior of the tank T and is open on the lower end thereof, and this lower end is disposed at a point above the bottom of the tank. A drain or outlet 12 is connected to the bottom of the tank so that the tank may be suitably cleaned or the like. An insulating jacket 14 is disposed about the periphery of the tank T, and an outer shell 15 engages the insulating jacket 14, and is constructed preferably of metal or the like, so as to protect this shell.

; A heating chamber, generally designated as 16, extends vertically or longitudinally along the tank T, and within this heating chamber 16, there is positioned a burner 17 which is connected as by a pipe line 18 to a source of fuel supply, such as gas or the like. A closure 19 is disposed on the front side of the heating chamber 16, and is adapted to be moved into open position so as to permit the lighting of the burner 1'7.

An inner pair of heating coils 20 are disposed within the heating chamber 16 and are connect- 69 ed at one end to a manifold 21, which communicates with the interior of the tank T adjacent the bottom thereof. and these coils 20 are connected at the other or upper end to a second or upper manifold 22. which communicates with the tank T adjacent the top thereof. so that the hot water will be discharged into the upper portion of the tank T. A second or forward pair of coils 23 are connected at the lower end to the lower manifold 21 and at the upper end to the upper manifold 22 at a point forwardly of the rear coils 20.

In order to provide a suitable connection between the lower ends of the coils 20 and 23 with the lower manifold 21, I have provided a T- shaped connection 24 which has on the cross portion thereof outlets 25 to which the ends of the coils 20 and 23 are connected. The stem portion of the T-connection 24 is connected. as at 26. to a nipple 27 carried by the manifold 21. In this so manner, the coils 20 and 23 on one side of the manifold 21 may be readily removed for repair or replacement.

The upper manifold 22 comprises a horizontally disposed chamber 28, which has pairs of downwardly and outwardly extending branches 29 for engagement by coupling members 30 carried by the upper ends of the coil members 20 and 23. The tank T has the top 31 thereof disposed below the top of the jacket 15 so as to provide an outlet passage for the gases passing upwardly through the heating chamber 16. A carry-ofi pipe 32 is connected to the top 33 of the jacket 15 and is adapted to be connected to a suitable carry-01f means such as a chimney or g the like. The lower end of the jacket 15 is closed and insulated and the lower end of the heating chamber is open to the atmosphere.

A thermal unit 34 extends through the manifold 21 and into the interior of the tank T, and is adapted to be operated by the temperature of the water or liquid within the tank T. An automatic valve operating means 35 is connected to the fuel supply line 18, and is also connected to the thermal member 34 for operation thereby, so 05 as to control the quantity of fuel discharging from the burner 17. This thermal unit 34 and the operating member 35 is of conventional and well known construction, and further description thereof is believed to be unnecessary. The tank T, together with the insulated jacket 15, is supported above a floor or the like by leg members 36, which engage the bottom of the jacket 15.

In the use and operation of this device, the supply valve 37, which is interposed in the fuel supply line 38, may be opened and the closure 19 opened to permit the lighting of the burner 17. The burning of the fuel from this burner 17 will heat the water in the coils 20 and 23, which water will rise in the coils and flow into the upper manifold 22 and from there into the upper portion of the tank T. When the Water in the storage tank or reservoir '1' is heated to the desired degree, the thermal unit 34 will operate the valve operating member 35, so as to cut off the supply of fuel to the burner 17, and this will be cut off until the temperature of the water or liquid in the tank T has dropped to a predetermined degree. Through the provision of an insulating jacket or shell including the insulation 14 and the outer shell 15, the temperature of the atmosphere exteriorly of the tank T will not greatly affect the temperature of the water within this tank and also the heat generated by the burner 17 will not be unduly dissipated by the walls of the heating chamber 16 which are also provided with suitable insulation 14'.

The particles of combustion will rise in the chamber 16 and pass over the top of the tank T and outwardly through the discharge pipe 32, which may be connected to any suitable source of carry-off means. It will be noted, from the foregoing, that an exceedingly simple heating means has been disclosed which can be connected to any standard range boiler and that this heating means is of a type which can be readily removed or replaced thereby facilitating the repair in the event such is necessary during the use of the device.

It is, of course, understood that various changes and modifications may be made in the details of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof, such changes and modifications being restricted only by the scope of the following claims.

What is claimed is:-

1. A heating and storage means comprising a liquid tank, means for insulating the tank, a heating chamber on one side of the tank and extending longitudinally thereof, a carry-off connection for carrying off the gases from the heating chamber, a plurality of heating coils in the chamber, an upper manifold connected to the upper ends of the coils and to the tank adjacent the top thereof, a lower manifold connected to the lower ends of the coils and to the tank adjacent the bottom thereof, and means for generating heat within the heating chamber below the coils, said lower manifold comprising a T-shaped connection having an outlet connection at each end of the cross portion of the T, means engaging the stem of the T-connection and the manifold to threadably secure the T-connection to the manifold, and thermal means for controlling the fuel to the burner said thermal means extending through and being supported by one of said manifolds.

2. A heating and storage means comprising a liquid tank, an insulating jacket disposed about the tank and open at the bottom, a top member carried by the jacket and disposed above the top of the tank to provide an outlet chamber, an outlet pipe connected to the outlet chamber, a heating chamber disposed on the side of the tank and extending longitudinally thereof; said heating chamber communicating with the outlet chamber, a plurality of heating coils within the chamber, an upper manifold connected to the tank adjacent the top thereof, means extending downwardly and outwardly of the upper manifold and engaging the upper ends of the coils to connect the coils to the manifold, a lower manifold, means extending outwardly and upwardly from the lower manifold and engaging the lower ends of the coils to connect the lower ends of the coils to the lower manifold, a burner below the coils within the heating chamber, a thermal unit extending through the lower manifold into the tank and supported entirely by said lower manifold, and means connected to the thermal unit and to a source of fuel supply to burner.

ROY M. FORSTER.

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control the quantity of fuel discharging from the 

